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Hesitation before boosting(NOT 3800RPM)

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Old 10-21-04, 02:14 PM
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Hesitation before boosting(NOT 3800RPM)

Ok, i have a new problem on my 88 turboII..
I feel like a kind of hesitation just before boosting and it's not the 3800 rpm hesitation.
I dont know what it can be....I did some vacuum recently.
Can the connection between vacuum souce before the TB, and a vacuum source AFTER the TB do that kind of "problem"?
Old 10-21-04, 02:25 PM
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Originally Posted by hugo20
....I did some vacuum recently...
Is the stock boost control solenoid still connected? If it's capped on unplugged, boost will come in late & low.
Old 10-21-04, 02:35 PM
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Another possibility - When the TPS starts to wear out it can give intermittant closed throttle signals to the ECU.
This video is an extreme example of a really bad TPS.click to play video.
Old 10-21-04, 03:06 PM
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My car has the exact same problem...check out the thread about "really bad hesitation".
Old 10-21-04, 03:18 PM
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Originally Posted by SureShot
Another possibility - When the TPS starts to wear out it can give intermittant closed throttle signals to the ECU.
This video is an extreme example of a really bad TPS.click to play video.

it is not even close to that video...
The motor feel the same, its more like it slow down then: BANG BOOOOOST

Maybe its just the feeling of noboost->boost ....
Old 10-21-04, 04:41 PM
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restrictor pill in the vac line to/from wg actuator? Or is that only on s5 t2s?
Old 10-21-04, 04:57 PM
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its only for the S5
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